diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 633cd3b25f..66d85c4045 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -1583,7 +1583,9 @@ namespace OpenSim.Region.Framework.Scenes
 
                 float cost = 0.1f;
                 if (PhysActor != null)
-//                    cost += PhysActor.Cost;
+                    cost = PhysActor.PhysicsCost;
+                else
+                    cost = 0.1f;
 
                 if ((Flags & PrimFlags.Physics) != 0)
                     cost *= (1.0f + 0.01333f * Scale.LengthSquared()); // 0.01333 == 0.04/3
@@ -1596,9 +1598,12 @@ namespace OpenSim.Region.Framework.Scenes
         {
             get
             {
-
-
-                return 0.1f;
+                float cost;
+                if (PhysActor != null)
+                    cost = PhysActor.StreamCost;
+                else
+                    cost = 1.0f;
+                return 1.0f;
             }
         }
 
diff --git a/OpenSim/Region/Physics/Manager/PhysicsActor.cs b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
index a2c72c30fb..14f65b8e14 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsActor.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
@@ -315,6 +315,23 @@ namespace OpenSim.Region.Physics.Manager
             }
         }
 
+
+        public virtual float PhysicsCost
+        {
+            get
+            {
+                return 0.1f;
+            }
+        }
+
+        public virtual float StreamCost
+        {
+            get
+            {
+                return 1.0f;
+            }
+        }
+
         /// <summary>
         /// Velocity of this actor.
         /// </summary>
diff --git a/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs b/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs
index 3fcbb1bb81..6bdc08938d 100644
--- a/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs
+++ b/OpenSim/Region/Physics/UbitOdePlugin/ODEMeshWorker.cs
@@ -40,8 +40,6 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         public float volume;
 
-        public float physCost;
-        public float streamCost;
         public byte shapetype;
         public bool hasOBB;
         public bool hasMeshVolume;
@@ -121,8 +119,14 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         public void Stop()
         {
-            m_running = false;
-            m_thread.Abort();
+            try
+            {
+                m_thread.Abort();
+                createqueue.Clear();
+            }
+            catch
+            {
+            }
         }
 
         public void ChangeActorPhysRep(PhysicsActor actor, PrimitiveBaseShape pbs,
@@ -172,11 +176,16 @@ namespace OpenSim.Region.Physics.OdePlugin
             if (repData.assetState != AssetState.needAsset)
                 return;
 
-            if (repData.assetID == null || repData.assetID == UUID.Zero)
-                return;
-
             repData.mesh = null;
 
+            if (repData.assetID == null || repData.assetID == UUID.Zero)
+            {
+                repData.assetState = AssetState.noNeedAsset;
+                repData.comand = meshWorkerCmnds.changefull;
+                createqueue.Enqueue(repData);
+                return;
+            }
+
             repData.assetState = AssetState.loadingAsset;
 
             repData.comand = meshWorkerCmnds.getmesh;
@@ -211,9 +220,6 @@ namespace OpenSim.Region.Physics.OdePlugin
                     repData.OBBOffset = mesh.GetCentroid();
                     repData.OBB = mesh.GetOBB();
                     repData.hasOBB = true;
-                    repData.physCost = 0.0013f * (float)indexCount;
-                    // todo
-                    repData.streamCost = 1.0f;
                     mesh.releaseSourceMeshData();
                 }
             }
@@ -427,11 +433,14 @@ namespace OpenSim.Region.Physics.OdePlugin
                     if (pbs.SculptTexture != null && pbs.SculptTexture != UUID.Zero)
                     {
                         repData.assetID = pbs.SculptTexture;
-                        repData.assetState = AssetState.needAsset;
+                        repData.assetState = AssetState.needAsset;                        
                     }
                     else
                         repData.assetState = AssetState.AssetFailed;
                 }
+                else
+                    repData.assetState = AssetState.needAsset;
+                
                 return false;
             }
 
@@ -828,14 +837,6 @@ namespace OpenSim.Region.Physics.OdePlugin
             if (repData.hasOBB)
             {
                 Vector3 OBB = repData.OBB;
-                float pc = repData.physCost;
-                float psf = OBB.X * (OBB.Y + OBB.Z) + OBB.Y * OBB.Z;
-                psf *= 1.33f * .2f;
-                pc *= psf;
-                if (pc < 0.1f)
-                    pc = 0.1f;
-
-                repData.physCost = pc;
             }
             else
             {
@@ -846,9 +847,6 @@ namespace OpenSim.Region.Physics.OdePlugin
 
                 repData.OBB = OBB;
                 repData.OBBOffset = Vector3.Zero;
-
-                repData.physCost = 0.1f;
-                repData.streamCost = 1.0f;
             }
 
             CalculateBasicPrimVolume(repData);
diff --git a/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs
index cbe129a71c..4c16f8eb57 100644
--- a/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs
@@ -277,7 +277,23 @@ namespace OpenSim.Region.Physics.OdePlugin
                     cdata.mu *= veh.FrictionFactor;
 //                    cdata.mu *= 0;
             }
-        }    
+        }
+
+        public override float PhysicsCost
+        {
+            get
+            {
+                return m_physCost;
+            }
+        }
+
+        public override float StreamCost
+        {
+            get
+            {
+                return m_streamCost;
+            }
+        }
 
         public override int PhysicsActorType
         {
@@ -1373,6 +1389,11 @@ namespace OpenSim.Region.Physics.OdePlugin
                 m_mesh = null;
                 return false;
             }
+
+            m_physCost = 0.0013f * (float)indexCount;
+            // todo
+            m_streamCost = 1.0f;
+
             return true;
         }
 
@@ -1386,7 +1407,7 @@ namespace OpenSim.Region.Physics.OdePlugin
             if (m_assetState == AssetState.AssetFailed)
                 m_NoColide = true;
 
-            else if (m_mesh != null)
+            else if(m_mesh != null)
             {
                 if (GetMeshGeom())
                     hasMesh = true;
@@ -2058,7 +2079,23 @@ namespace OpenSim.Region.Physics.OdePlugin
                                 m_OBBOffset.Y,
                                 m_OBBOffset.Z);
 
-            primOOBradiusSQ = m_OBBOffset.LengthSquared();
+            primOOBradiusSQ = m_OBB.LengthSquared();
+
+            if (_triMeshData != IntPtr.Zero)
+            {
+                float pc = m_physCost;
+                float psf = primOOBradiusSQ;
+                psf *= 1.33f * .2f;
+                pc *= psf;
+                if (pc < 0.1f)
+                    pc = 0.1f;
+
+                m_physCost = pc;
+            }
+            else
+                m_physCost = 0.1f;
+
+            m_streamCost = 1.0f;
         }
 
         #endregion
@@ -2717,10 +2754,6 @@ namespace OpenSim.Region.Physics.OdePlugin
             m_OBBOffset = repData.OBBOffset;
             m_OBB = repData.OBB;
 
-//            m_NoColide = repData.NoColide;
-            m_physCost = repData.physCost;
-            m_streamCost = repData.streamCost;
-
             primVolume = repData.volume;
 
             CreateGeom();
@@ -2793,9 +2826,6 @@ namespace OpenSim.Region.Physics.OdePlugin
             m_OBBOffset = repData.OBBOffset;
             m_OBB = repData.OBB;
 
-            m_physCost = repData.physCost;
-            m_streamCost = repData.streamCost;
-
             primVolume = repData.volume;
 
             CreateGeom();
@@ -2806,14 +2836,8 @@ namespace OpenSim.Region.Physics.OdePlugin
 
                 UpdatePrimBodyData();
 
-                try
-                {
                     _parent_scene.actor_name_map[prim_geom] = this;
-                }
-                catch
-                {
 
-                }
 
                 d.GeomSetPosition(prim_geom, _position.X, _position.Y, _position.Z);
                 d.Quaternion myrot = new d.Quaternion();